Financial Transaction Medium

Abstract

One example of a financial transaction medium includes a passive electronic paper display. A security code is displayed on a portion of the passive electronic paper display.

1 . A financial transaction medium comprising:
 a passive electronic paper display;   a security code displayed on a portion of the passive electronic paper display; and   a payment card identifier to identify the financial transaction medium.   
     
     
         2 . The financial transaction medium of  claim 1 , wherein the security code is updatable each time the financial transaction medium is accessed. 
     
     
         3 . The financial transaction medium of  claim 1 , wherein the security code comprises a dynamic Card Code Verification (CCV) code or a dynamic Personal Identification Number (PIN). 
     
     
         4 . The financial transaction medium of  claim 1 , wherein the security code is embedded in an image. 
     
     
         5 . The financial transaction medium of  claim 1 , wherein the security code is embedded in a Quick Response (QR) code. 
     
     
         6 . The financial transaction medium of  claim 1 , wherein the payment card identifier is displayed on a portion of the passive electronic paper display and is updatable each time the financial transaction medium is accessed. 
     
     
         7 . A system comprising:
 an imaging device to communicatively couple to a secure server, the imaging device to update a security code displayed on a portion of a passive electronic paper display of a financial transaction medium each time the financial transaction medium is accessed by the imaging device.   
     
     
         8 . The system of  claim 7 , wherein the imaging device comprises a reader to access the financial transaction medium to perform a financial transaction. 
     
     
         9 . The system of  claim 7 , wherein the imaging device comprises an addressable non-contact ion head to write to the passive electronic paper display. 
     
     
         10 . The system of  claim 7 , wherein the financial transaction medium comprises a credit card, gift card, debit card, or prepaid card. 
     
     
         11 . A method for updating a financial transaction medium, the method comprising:
 writing a security code to a portion of a passive electronic paper display of a financial transaction medium; and   updating the security code written to the passive electronic paper display when the financial transaction medium is accessed.   
     
     
         12 . The method of  claim 11 , wherein updating the security code comprises updating the security code each time the financial transaction medium is accessed by an imaging device for writing to the passive electronic paper display. 
     
     
         13 . The method of  claim 11 , wherein updating the security code comprises updating the security code at a retailer point of sale. 
     
     
         14 . The method of  claim 11 , wherein updating the security code comprises updating the security code via an automated teller machine or a payment card charging unit. 
     
     
         15 . The method of  claim 11 , further comprising:
 performing a financial transaction using the security code prior to updating the security code.